Hugh

This part sums it up (imho), and is reflected in this (and other) forum(s).
"with opinion dividing into people who see leaving a child as stupid, but not the world’s greatest crime – such people are broadly sympathetic to the McCanns – and people who find it inexcusable, criminal and indicative of all sorts of dark possibilities."

I believe they (and the other couples) were negligent in leaving the children unattended in the way they did, but have not seen anything that convinces me that they killed their daughter, or deserve to be pilloried and slandered by innuendo this way - I understand that others may disagree, and that is their (and my) privilege.

Another article, which tries to separate fact from speculation
Never mind the facts, this is show-business
"Big Brother and the McCann case are treated by the media in roughly the same fashion"

"You wouldn't know it, but almost nothing new has been said officially about the case, either by the Portuguese police or by the forensic science service in Britain. The facts are: the McCanns were questioned last week, a file has gone to the prosecutor, the British have analysed evidence from the site of the disappearance and sent some results to Portugal. Nearly everything else - the hair in the car, the investigations in the local church, the demands for Cuddle Cat, the diary contents and so on - is speculation, based on unnamed sources. Even the precise meaning of "arguido/a" is unclear."